Electronic unit for controlling automotive vehicle and method of monitoring functionalities of the automotive vehicle by means of a mobile terminal
a technology of electronic control unit and mobile terminal, which is applied in the direction of individual entry/exit registers, anti-theft devices, instruments, etc., can solve the problems of insufficient reliability of method, inability to accurately determine the distance between the bearer of inability to know the distance with sufficient acuity, so as to improve the estimation of the distance between the mobile terminal and the antenna. , the effect of improving the transmission of data exchange and good accuracy
Pending Publication Date: 2021-01-14
VALEO COMFORT & DRIVING ASSISTANCE
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AI Technical Summary
Benefits of technology
The patent describes a system that uses multiple signals to better estimate the distance between a mobile device and a vehicle, and to accurately determine if the mobile device is inside or outside of the vehicle. This helps improve data transmission between the device and the vehicle's controller.
Problems solved by technology
The major problem is that it proves, in practice, extremely difficult to determine accurately the distance separating the vehicle from the mobile terminal.
In practice, this method does not give results that are sufficiently reliable to be used, for the following reasons.
Consequently, it seems difficult to know, with sufficient acuity, the distance between the bearer of the mobile terminal and the antenna with which the motor vehicle is equipped.
Moreover, the non-isotropic nature of the antenna does not make it possible to ensure a good transmission of the signal between the antenna and the mobile terminal whatever the position thereof in relation to the motor vehicle which can prove awkward for the user, for example when he or she wants to remotely lock the doors of his or her vehicle.
Method used
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[0041]The following description in light of the attached drawings, given by way of non-limiting examples, will give a good understanding of how the invention is composed and how it can be produced.
[0042]In the attached drawings:
[0043]FIG. 1 is a schematic view of a mobile terminal and of a motor vehicle equipped with an electronic control unit according to the invention;
[0044]FIG. 2 schematically represents components of the motor vehicle and of the mobile terminal of FIG. 1, useful to understanding the invention;
[0045]FIG. 3 represents the radiation patterns of the two antennas of the electronic control unit of FIG. 1; and
[0046]FIG. 4 represents, in the top part, two histograms illustrating the distribution of the strength levels of the signals received by each antenna for several positions of the mobile terminal in the interior of the motor vehicle, and, in the bottom part, a histogram illustrating the distribution of the geometrical means of said strength levels.
[0047]FIG. 1 repr...
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The invention relates to an electronic control unit (11) intended for equipping an automotive vehicle, comprising: —a first antenna (16A), and —a controller (12) which is connected to said first antenna and which is suitable for controlling a functionality of the vehicle as a function of signals exchanged with a mobile terminal (20) via said first antenna. According to the invention, the electronic control unit comprises at least one second antenna (16B) which exhibits electromagnetic properties and / or a position which are different from those of said first antenna and to which the controller is connected in such a way that the controller is suitable for controlling one or more functionalities of the vehicle as a function of signals exchanged with the mobile terminal via said second antenna.
Description
TECHNICAL FIELD TO WHICH THE INVENTION RELATES[0001]The present invention relates generally to the control of functionalities of a motor vehicle by means of a mobile terminal.[0002]It relates more particularly to an electronic control unit intended to equip a motor vehicle, comprising an antenna and a controller which is connected to this antenna and which is suitable for controlling a functionality of the motor vehicle as a function of signals exchanged with a mobile terminal via the antenna.[0003]It relates also to a method for controlling access to at least one functionality of a motor vehicle by a user equipped with a mobile terminal.[0004]The invention applies particularly advantageously to the case where the functionality controlled is the unlocking of the doors of the vehicle or the starting of the engine of the vehicle.TECHNOLOGICAL BACKGROUND[0005]It has been proposed to control certain functionalities of a motor vehicle, such as the unlocking of the doors or the starting o...
Claims
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Login to View More IPC IPC(8): B60R25/24B60R25/01H01Q1/32
CPCB60R25/245B60R25/01B60R2325/205B60R2325/101H01Q1/3241G07C9/00309G07C2209/63H01Q21/28
Inventor BOURASSI, ABDELHAFIDPARVERY, HERVÉROBINEAU, JOSÉ
Owner VALEO COMFORT & DRIVING ASSISTANCE